Patents by Inventor Hyouk-Kyu Cha

Hyouk-Kyu Cha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Power transfer device
    Patent number: 9240690
    Abstract: A power transfer device is provided. The power transfer device includes a circuit arrangement including a primary side having a primary coil; a secondary side having a secondary coil inductively coupled to the primary coil and a load transformation unit; wherein the load transformation unit includes an inductor and a capacitor; wherein the secondary coil, the inductor and the capacitor respectively includes a first terminal and a second terminal; wherein the first terminal of the secondary coil is coupled to the first terminal of the capacitor, the second terminal of the capacitor is coupled to the first terminal of the inductor, and the second terminal of the inductor is coupled to the second terminal of the secondary coil.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 19, 2016
    Assignee: Agency for Science, Technology and Research
    Inventors: Rui-Feng Xue, Jia Hao Cheong, Hyouk-Kyu Cha, Minkyu Je
  • Amplifier and transceiver including the amplifier
    Patent number: 8957732
    Abstract: An amplifier and a transceiver including the amplifier are provided. The amplifier includes an input terminal; a first transistor of a first conductivity and a second transistor of a second conductivity, each transistor comprising a source terminal, a gate terminal and a drain terminal respectively, the source terminal of the first transistor being coupled to the source terminal of the second transistor, and the gate terminal of the first transistor and the gate terminal of the second transistor being coupled to the input terminal; and an output terminal coupled to the drain terminal of the first transistor and the drain terminal of the second transistor.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: February 17, 2015
    Assignee: Agency for Science, Technology and Research
    Inventors: Hyouk Kyu Cha, Yuan Gao, Xiaojun Yuan
  • Amplifier and Transceiver Including the Amplifier
    Publication number: 20130169364
    Abstract: An amplifier and a transceiver including the amplifier are provided. The amplifier includes an input terminal; a first transistor of a first conductivity and a second transistor of a second conductivity, each transistor comprising a source terminal, a gate terminal and a drain terminal respectively, the source terminal of the first transistor being coupled to the source terminal of the second transistor, and the gate terminal of the first transistor and the gate terminal of the second transistor being coupled to the input terminal; and an output terminal coupled to the drain terminal of the first transistor and the drain terminal of the second transistor.
    Type: Application
    Filed: May 25, 2011
    Publication date: July 4, 2013
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Hyouk Kyu Cha, Yuan Gao, Xiaojun Yuan
  • Power Transfer Device
    Publication number: 20130062962
    Abstract: A power transfer device is provided. The power transfer device includes a circuit arrangement including a primary side having a primary coil; a secondary side having a secondary coil inductively coupled to the primary coil and a load transformation unit; wherein the load transformation unit includes an inductor and a capacitor; wherein the secondary coil, the inductor and the capacitor respectively includes a first terminal and a second terminal; wherein the first terminal of the secondary coil is coupled to the first terminal of the capacitor, the second terminal of the capacitor is coupled to the first terminal of the inductor, and the second terminal of the inductor is coupled to the second terminal of the secondary coil.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 14, 2013
    Inventors: Rui-Feng XUE, Jia Hao Cheong, Hyouk-Kyu Cha, Minkyu Je
  • 3-transistor OTP ROM using CMOS gate oxide antifuse
    Patent number: 6927997
    Abstract: The present invention relates to an OTP ROM using a CMOS gate oxide antifuse.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: August 9, 2005
    Assignee: Korea Advance Institute of Science and Technology
    Inventors: Kwyro Lee, Jinbong Kim, Hyouk-Kyu Cha
  • 3-Transistor OTP ROM using CMOS gate oxide antifuse
    Publication number: 20050007855
    Abstract: The present invention relates to an OTP ROM using a CMOS gate oxide antifuse.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 13, 2005
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Kwyro Lee, Jinbong Kim, Hyouk-Kyu Cha